spandsp  0.0.6
private/gsm0610.h
1 /*
2  * SpanDSP - a series of DSP components for telephony
3  *
4  * private/gsm0610.h - GSM 06.10 full rate speech codec.
5  *
6  * Written by Steve Underwood <steveu@coppice.org>
7  *
8  * Copyright (C) 2006 Steve Underwood
9  *
10  * All rights reserved.
11  *
12  * This program is free software; you can redistribute it and/or modify
13  * it under the terms of the GNU Lesser General Public License version 2.1,
14  * as published by the Free Software Foundation.
15  *
16  * This program is distributed in the hope that it will be useful,
17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19  * GNU Lesser General Public License for more details.
20  *
21  * You should have received a copy of the GNU Lesser General Public
22  * License along with this program; if not, write to the Free Software
23  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24  */
25 
26 #if !defined(_SPANDSP_PRIVATE_GSM0610_H_)
27 #define _SPANDSP_PRIVATE_GSM0610_H_
28 
29 /*!
30  GSM 06.10 FR codec state descriptor. This defines the state of
31  a single working instance of the GSM 06.10 FR encoder or decoder.
32 */
34 {
35  /*! \brief One of the packing modes */
36  int packing;
37 
38  int16_t dp0[280];
39 
40  /*! Preprocessing */
41  int16_t z1;
42  int32_t L_z2;
43  /*! Pre-emphasis */
44  int16_t mp;
45 
46  /*! Short term delay filter */
47  int16_t u[8];
48  int16_t LARpp[2][8];
49  int16_t j;
50 
51  /*! Long term synthesis */
52  int16_t nrp;
53  /*! Short term synthesis */
54  int16_t v[9];
55  /*! Decoder postprocessing */
56  int16_t msr;
57 
58  /*! Encoder data */
59  int16_t e[50];
60 };
61 
62 #endif
63 /*- End of include ---------------------------------------------------------*/
Definition: private/gsm0610.h:33
int16_t msr
Definition: private/gsm0610.h:56
int16_t nrp
Definition: private/gsm0610.h:52
int packing
One of the packing modes.
Definition: private/gsm0610.h:36
int16_t u[8]
Definition: private/gsm0610.h:47
int16_t mp
Definition: private/gsm0610.h:44
int16_t e[50]
Definition: private/gsm0610.h:59
int16_t z1
Definition: private/gsm0610.h:41
int16_t v[9]
Definition: private/gsm0610.h:54